One thing about raised beds vs the ground -- be sure to ask about any manure / enriched soil. You don't want it to be too hot. Actively composting soil and manure creates its own heat. I'm not exactly sure how to explain this so it makes sense.
Are you talking about bags of chicken/steer manure or bags of potting soil enriched with manure? You should only use manure in small amounts as fertilizer - not as a potting soil - but the enriched bags of potting soil should be fine for a planting base. You need a fairly big pile, such as an active 4' pile of compost (or an enclosed environment like the compost tumblers) to generate enough heat to damage plants! But too much manure/nitrogen in a mix can chemically burn plants.
And fresh manure from many species - not just cats, dogs, humans - can carry pathogens, which is why organic farmers have to age/compost manure before use. I think rabbit and horse manure are pretty safe, but someone correct me if I'm wrong!